Marven Water Based Adhesive Medium is a superb craft and painting medium with a Polyvinyl Acetate (PVA) base.Dries to a completely flexible, almost transparent finish, ideal for modelling, mixing, glazing or as a strong adhesive on porous material.Can be mixed with any colour pigment without loss of brilliance when dry.As an economy measure, it can be diluted to form a lightweight adhesive and it forms a transparent glaze when dry.Also renders difficult surfaces suitable for painting and strengthens card and paper in model making.